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论文类型：期刊论文

发表时间：2010-08-01

发表刊物：CHINESE CHEMICAL LETTERS

收录刊物：SCIE、ISTIC、CSCD

卷号：21

期号：8

页面范围：979-982

ISSN号：1001-8417

关键字：Microcapsule-supported palladium catalyst; SPG emulsification technique; Heck reaction

摘要：A new method for the preparation of microcapsule-supported palladium catalyst was described. The highly monodisperse crosslinked polystyrene microcapsules containing phosphine ligand were synthesized by the self-assembling of phase separated polymer (SaPSeP) method using diphenyl(4-vinylphenyl)phosphine and divinylbenzene as a monomer and crosslinking agent, respectively, and 2,2'-azobisisobutyronitrile (AIBN) as an initiator within the droplets of oil-in-water (O/W) emulsions, which were prepared by using the Shirasu Porous Glass (SPG) membrane emulsification technique. The prepared microcapsule-supported palladium catalyst exhibited high catalytic activity for Heck reaction and can be reused several times without loss of activity. (C) 2010 Xiu Juan Feng. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.